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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Numerical method for low-frequency electromagnetic fields and its applications
低频 电磁场数值 低频涡流场 有限元编程
2023/4/13
本报告首先回顾传统低频涡流场的两种计算格式，指出有限元编程实现过程中的基函数选择以及需要注意的难点问题。第二部分针对静磁场问题，通过引入规范条件提出了一种基于矢量磁位和磁场强度的新型的对偶格式，该方法通过巧妙构造基于矢量磁位和磁场强度的计算格式，整体矩阵完全一致并且可以给出系统电感参数的上下界，在实际参数提取中有很好的应用前景。在第三部分，由于传统低频涡流场近似不能有效考虑分布电容效应，而传统高频...
Where is all the new physics? In the decade since the Higgs boson’s discovery, there have been no statistically significant hints of new particles in data from the Large Hadron Collider (LHC). Could t...
Flexible and accessible, the HiRadMat facility celebrates its tenth anniversary（图）
HiRadMat设施 光束冲击 测试材料
2023/5/30
HiRadMat (High-Radiation to Materials) has been a key European facility for material testing for ten years now. It is designed to provide high-intensity, high-momentum pulsed beams to an irradiation a...
System's ability to boost laser precision at room temperature increases its usability（图）
boost laser precision room temperature increases usability
2020/7/17
Physicists at the Massachusetts Institute of Technology have designed a quantum "light squeezer" that reduces quantum noise in an incoming laser beam by 15%. It is the first system of its ki...
Iridium 'loses its identity' when interfaced with nickel（图）
Iridium loses identity interfaced nickel
2019/10/17
Note to physicists and materials scientists: You'd better reevaluate your work if you study iridium-based materials -- members of the platinum family -- when they are ultra-thin.Iridium "loses its ide...
2018年7月4日，在法国卡昂举行的第37届国际热电大会暨第16届欧洲热电年会上，中国科学院上海硅酸盐研究所陈立东研究员当选为国际热电学会（International Thermoelectric Society，ITS）理事（board member）。国际热电学会是国际热电研究领域最重要的学术组织，理事由来自美、日、法、德、韩、中等多个国家的13名科学家组成。每届任期3年，此次是陈立东研究员第...
SPATIAL AND TEMPORAL CHANGES OF AEROSOL OPTICAL DEPTH AND ITS DRIVING FACTORS BASED ON MODIS IN JIANGSU PROVINCE
AOD MODIS Temporal Change Spatial Autocorrelation Gravity Model Driving Factor
2018/5/14
Aerosol Optical Depth (AOD) is of great value for studying air mass and its changes. In this paper, we studied the spatial-temporal changes of AOD and its driving factors based on spatial autocorrelat...
This conference is focused on the most recent advances in nonlinear optics and its applications. Nonlinear optics has far reaching applications, from ultrafast communication links and supercontinuum g...
Demon-like Algorithmic Quantum Cooling and Its Realization with Quantum Optics
Demon-like Algorithmic Quantum Cooling Quantum Optics
2016/1/22
Simulation of the low-temperature properties of many-body systems remains one of the major challenges in theoretical 1–3 and experimental 4–6 quantum information science. We present, and demonstrate e...
After repeated pounding,antihydrogen reveals its charge:zero
repeated pounding antihydrogen charge zero
2016/2/22
An eight-hour experiment using the ALPHA trap at CERN confirmed with 20 times greater precision than before that the charge of the antihydrogen atom – the antimatter counterpart of the hydrogen atom –...
THE LOW-FREQUENCY ELECTRIC FIELDS INDUCED IN A SPHERICAL CELL INCLUDING ITS NUCLEUS
LOW-FREQUENCY ELECTRIC FIELDS INDUCED SPHERICAL CELL NUCLEUS
2015/10/16
After a review of work leading to the determination of the electric field induced in the human body when exposed to the electromagnetic field near an extremely-low-frequency high-voltage transmission ...
HEIGHT TEXTURE OF LOW VEGETATION IN AIRBORNE LASER SCANNER DATA AND ITS POTENTIAL FOR DTM CORRECTION
airborne laser scanning vegetation texture DEM/DTM correction
2015/8/13
The influence of low vegetation on laser scanning and its disturbing effect (a systematic positive height shift) during DTM generation
is well recognized. Based on our experience in a previous study...
Clarifying Open Access:its implications for the research community (Letter)
open access Green OA Gold OA publishing models publishing reform self-archiving research funding
2015/7/29
A critique of the CERN proposal to convert particle physics journals from the user-institution-pays subscription model to an author-institution-pays model for the sake of Open Access (OA). OA can be a...
K-L->pi(0)gamma e(+)e(-) and its relation to CP and chiral tests
Decay in Kuala Lumpur non radiation chiral perturbation theory the quantitative easing policy
2014/12/22
The decay KL→π0γe+e- occurs at a higher rate than the nonradiative process KL→π0e+e-, and hence can be a background to CP violation studies using the latter reaction. It also has interest in its own r...
Scanning Superfluid-Turbulence Cascade by its Low-Temperature Cutoff
Kolmogorov low temperature quantization the vortex line density coefficient of friction
2014/12/19
On the basis of a recently proposed scenario of the transformation of the Kolmogorov cascade into the Kelvin-wave cascade, we develop a theory of low-temperature cutoff. The theory predicts a specific...